EP1163944B1 - Filter with annular formed filter medium - Google Patents

Filter with annular formed filter medium Download PDF

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Publication number
EP1163944B1
EP1163944B1 EP01114072A EP01114072A EP1163944B1 EP 1163944 B1 EP1163944 B1 EP 1163944B1 EP 01114072 A EP01114072 A EP 01114072A EP 01114072 A EP01114072 A EP 01114072A EP 1163944 B1 EP1163944 B1 EP 1163944B1
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EP
European Patent Office
Prior art keywords
filter
cut
functional component
filter medium
housing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP01114072A
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German (de)
French (fr)
Other versions
EP1163944A1 (en
Inventor
Günter Jokschas
Helmut Luka
Jochen Reyinger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mann and Hummel GmbH
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Mann and Hummel GmbH
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Publication date
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Publication of EP1163944A1 publication Critical patent/EP1163944A1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D36/00—Filter circuits or combinations of filters with other separating devices
    • B01D36/003—Filters in combination with devices for the removal of liquids
    • B01D36/006—Purge means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D27/00—Cartridge filters of the throw-away type
    • B01D27/04—Cartridge filters of the throw-away type with cartridges made of a piece of unitary material, e.g. filter paper
    • B01D27/06—Cartridge filters of the throw-away type with cartridges made of a piece of unitary material, e.g. filter paper with corrugated, folded or wound material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/22—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system
    • F02M37/24—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by water separating means
    • F02M37/26—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by water separating means with water detection means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/22—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system
    • F02M37/32—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by filters or filter arrangements
    • F02M37/34—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by filters or filter arrangements by the filter structure, e.g. honeycomb, mesh or fibrous
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/12—Pleated filters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/40—Special measures for connecting different parts of the filter
    • B01D2201/4046—Means for avoiding false mounting of different parts

Definitions

  • the invention relates to a filter which contains a ring-shaped between end disks formed filter medium in the form of a filter cartridge and is incorporated with a further functional component in a housing structure, according to the preamble of claim 1.
  • Such filters are known. They are used in particular for filtering liquids, eg. B. used for filtering fuel for an internal combustion engine. Such a filter is z. B. in the EP 715 873 A2 disclosed. This filter has at the bottom of the housing a drain plug for water, which is contained in the fuel and is gradually deposited and accumulated in the housing. A water sensor, also located in the bottom of the housing, determines the maximum permissible water level in the housing and signals the necessity of discharging the water from the fuel filter.
  • drain plug and water sensor in the housing bottom of the fuel filter requires, however, that sufficient installation space in the engine compartment of the internal combustion engine is available for these elements.
  • the space in vehicles are often severely limited by other components. Therefore, the possibilities of meaningfully integrating the fuel filter in the internal combustion engine are limited by the illustrated geometry of the water drain and the sensor. In particular, there must be enough space under the drain plug be provided to provide a container for the drained water.
  • document EP 0 754 483 A1 describes a filter medium having a recess having a plurality of small wrinkles.
  • the object of the invention is therefore to provide a filter which has a great freedom of design with regard to further components accommodated on the filter. This object is solved by the features of claim 1.
  • the filter according to the invention has in a known manner a housing structure, the z. B. may be formed by a cup-shaped housing having an inlet and an outlet for the fluid to be filtered.
  • a filter cartridge is installed, which has an annular filter medium.
  • a folded filter web is closed together annularly, wherein in association with the end plates, the filter cartridge is formed.
  • the cylindrical filter cartridge must have a circular cross-section. Also conceivable are any other cross sections, z. B. an elliptical cross-section.
  • the filter another functional component is provided, which takes on the filter a specific function.
  • This is mounted in the housing structure and has according to the invention in a recess in the filter medium inside, which is provided for this purpose in the filter cartridge.
  • the further functional component can be flexibly arranged in the housing structure, as a result of which the installation conditions of the filter at the installation location can be better taken into account.
  • the filter medium is formed by an annularly joined filter web, so the recess can be formed by a folding pocket with increased folding distance.
  • the increased pleat spacing ensures a parallel to the axis of the filter recess, which causes no additional sealing effort on the filter medium, since this is still closed annularly.
  • the Filter web can consist of filter paper or fleece. Also conceivable are multilayer filter media which may additionally have support layers or pre-deposition layers.
  • At least one of the end disks has a recess which corresponds to the recess in the filter medium.
  • the further functional component can also be pushed into the recess from the front side of the filter cartridge.
  • the recess in the end plate can z. B. be formed by a hole or a notch.
  • the further functional component is a sensor of a water level sensor and / or a suction nozzle for a liquid outlet.
  • the liquid discharge is particularly suitable for removing separated water from the fuel of a fuel filter.
  • the water level sensor can determine the maximum allowable water level in the housing structure of the filter. Since the separated from the fuel water accumulates in the lower part of the housing, appropriate requirements are placed on the installation position for the accommodation of the water level sensor and the liquid drain. Therefore, the geometric margin for the attachment of these components is limited anyway. Therefore, the recess in the filter cartridge in these components has a particularly advantageous effect, since the problem of limited mounting options is compensated.
  • a fuel filter for the filter cartridge with the recess advantageously has a housing pot and a housing cover, wherein the further functional element is mounted in the lid.
  • the attachment in the lid is only possible in a hanging arrangement of the fuel filter with housing pot down when the cartridge has a recess. Otherwise, a water level sensor or a suction nozzle could not be passed by the cartridge, as this space is provided in the housing pot.
  • the arrangement of said functional components in the lid is preferable not only because of the more favorable installation space conditions, but also because all the complex receiving structures for the inlet, outlet and the functional components can be integrated into the cover.
  • the housing pot is thus a geometrically simple and easy-to-manufacture component, which makes the solution more economical.
  • a filter cartridge having the features of the invention is also placed under protection. This is to be installed as described in the filter according to the invention.
  • the fuel filter according to FIG. 1 has a housing structure 10 with a housing pot 11 and a housing cover 12.
  • a housing cover 12 In the housing cover 12 are an inlet 13 and an outlet 14 for the fuel and a water level sensor 15 and a Liquid outlet 16 accommodated for the water to be separated from the housing structure.
  • a filter cartridge 19 is installed with the aid of a plate spring 17 and a spacer 18 such that the filter cartridge sealingly separates the inlet 13 from the outlet 14. Therefore, the fuel must flow through a filter medium 20, which is indicated by arrows. Through the spacer, a collecting space 21 for the separated water is formed in the lower part of the housing pot.
  • the filter cartridge 19 consists of the annular filter medium 20, which is formed by a zig-zag folded filter paper, and end plates 22, in which the end faces of the filter medium are embedded. Shown is also a recess 23 in the filter medium and recesses 23a in the end plates 22, through which a suction nozzle 24 of the liquid outlet 16 and a sensor 25 of the water level sensor 15 are guided. These extend from the mounting location in the housing cover 12 into the collecting space 21 for the water, which is due to the installation position of the fuel filter with downwardly facing housing pot 11 below the filter cartridge. Water level sensor 15 and liquid outlet 16 are combined in a mounting head 26.
  • FIG. 2 allows the view of the filter cartridge 19, wherein the upper end plate 22 is shown partially broken. Underneath, the folded filter medium 20 is visible, wherein the recess 23 is formed by a folding pocket 27, which has a greater pleat spacing than the other folding pockets.
  • the recess 23 of the filter medium corresponds to the recesses 23a in the end plates 22, wherein the recess of the lower end plate 23a can be seen. In the recess, the section through the probe 25 and the suction nozzle 24 can still be seen. Suggested as installation location of the housing pot 11th
  • FIG. 3 shows the top view of the fuel filter, wherein the inlet 13 is shown offset. It can also be seen the outlet 14 and the mounting head 26. This consists of the water level sensor 15, which has a plug-in connection 28 for signal lines, not shown, and the liquid drain 16, which has a manually operated valve screw 29 and a hose nozzle 30.

Abstract

The filter includes a filter cartridge containing filter medium(20) formed in annular fashion between end plates(22). The filter has a housing structure with a cut-out(23) in the filter medium for an additional functional component. The additional functional component may be a water level sensor probe(25) or a suction connector(24) for a fluid drain(16). The filter medium consists of a filter paper folded over in circular fashion. An Independent claim is included for a filter cartridge incorporating the aforesaid features.

Description

Stand der TechnikState of the art

Die Erfindung betrifft einen Filter, der ein ringförmig zwischen Endscheiben ausgebildetes Filtermedium in Form einer Filterpatrone enthält und mit einem weiteren Funktionsbauteil in eine Gehäusestruktur eingebaut ist, nach der Gattung des Patentanspruches 1.The invention relates to a filter which contains a ring-shaped between end disks formed filter medium in the form of a filter cartridge and is incorporated with a further functional component in a housing structure, according to the preamble of claim 1.

Derartige Filter sind bekannt. Sie werden insbesondere zur Filterung von Flüssigkeiten, z. B. zur Filterung von Kraftstoff für eine Brennkraftmaschine verwendet. Ein solcher Filter ist z. B. in der EP 715 873 A2 offenbart. Dieser Filter hat am Gehäuseboden eine Ablassschraube für Wasser, welches im Kraftstoff enthalten ist und nach und nach im Gehäuse abgeschieden und angesammelt wird. Ein ebenfalls im Gehäuseboden untergebrachter Wassersensor ermittelt den höchst zulässigen Wasserstand im Gehäuse und signalisiert die Notwendigkeit einer Austragung des Wassers aus dem Kraftstofffilter.Such filters are known. They are used in particular for filtering liquids, eg. B. used for filtering fuel for an internal combustion engine. Such a filter is z. B. in the EP 715 873 A2 disclosed. This filter has at the bottom of the housing a drain plug for water, which is contained in the fuel and is gradually deposited and accumulated in the housing. A water sensor, also located in the bottom of the housing, determines the maximum permissible water level in the housing and signals the necessity of discharging the water from the fuel filter.

Die Unterbringung von Ablassschraube und Wassersensor im Gehäuseboden des Kraftstofffilters setzt jedoch voraus, dass für diese Elemente genügender Einbauraum im Motorraum der Brennkraftmaschine zur Verfügung steht. Die Platzverhältnisse in Kraftfahrzeugen sind jedoch häufig durch weitere Bauteile stark beschränkt. Daher werden die Möglichkeiten, den Kraftstofffilter sinnvoll in der Brennkraftmaschine zu integrieren, durch die dargestellte Geometrie des Wasserablaufs und des Sensors eingeschränkt. Insbesondere muss unter der Ablassschraube genügend Platz vorgesehen werden, um ein Auffanggefäß für das abgelassene Wasser bereitzustellen.The placement of drain plug and water sensor in the housing bottom of the fuel filter requires, however, that sufficient installation space in the engine compartment of the internal combustion engine is available for these elements. However, the space in vehicles are often severely limited by other components. Therefore, the possibilities of meaningfully integrating the fuel filter in the internal combustion engine are limited by the illustrated geometry of the water drain and the sensor. In particular, there must be enough space under the drain plug be provided to provide a container for the drained water.

Dokument EP 0 754 483 A1 beschreibt ein Filtermedium, das eine Aussparung besitzt, die mehrere kleine Falten aufweist.document EP 0 754 483 A1 describes a filter medium having a recess having a plurality of small wrinkles.

Aufgabe der Erfindung ist es daher, einen Filter zu schaffen, der eine große Gestaltungsfreiheit hinsichtlich weiterer am Filter untergebrachter Funktionskomponenten aufweist. Diese Aufgabe wird durch die Merkmale des Patentanspruches 1 gelöst.The object of the invention is therefore to provide a filter which has a great freedom of design with regard to further components accommodated on the filter. This object is solved by the features of claim 1.

Vorteile der ErfindungAdvantages of the invention

Der erfindungsgemäße Filter weist in bekannter Weise eine Gehäusestruktur auf, die z. B. durch ein topfförmiges Gehäuse mit einem Einlass und einem Auslass für das zu filternde Fluid gebildet sein kann. In dieses Gehäuse ist eine Filterpatrone eingebaut, welche ein ringförmiges Filtermedium aufweist. Dieses kann z. B. aus einem Filtervlies bestehen, welches um einen Stützkörper gewickelt werden kann. Gemäß der Erfindung wird eine gefaltete Filterbahn ringförmig zusammengeschloßen, wobei im Verband mit den Endscheiben die Filterpatrone entsteht. Die zylindrische Filterpatrone muss einen kreisförmigen Querschnitt aufweisen. Ebenso denkbar sind beliebige andere Querschnitte, z. B. ein elliptischer Querschnitt.The filter according to the invention has in a known manner a housing structure, the z. B. may be formed by a cup-shaped housing having an inlet and an outlet for the fluid to be filtered. In this case, a filter cartridge is installed, which has an annular filter medium. This can be z. B. consist of a filter fleece, which can be wound around a support body. According to the invention, a folded filter web is closed together annularly, wherein in association with the end plates, the filter cartridge is formed. The cylindrical filter cartridge must have a circular cross-section. Also conceivable are any other cross sections, z. B. an elliptical cross-section.

Im Filter ist ein weiteres Funktionsbauteil vorgesehen, welches am Filter eine bestimmte Funktion übernimmt. Dieses ist in der Gehäusestruktur befestigt und weist gemäß der Erfindung in eine Aussparung im Filtermedium hinein, die zu diesem Zweck in der Filterpatrone vorgesehen ist. Hierdurch lässt sich das weitere Funktionsbauteil flexibel in der Gehäusestruktur anordnen, wodurch die Einbauverhältnisse des Filters am Einbauort besser Beachtung finden können.In the filter another functional component is provided, which takes on the filter a specific function. This is mounted in the housing structure and has according to the invention in a recess in the filter medium inside, which is provided for this purpose in the filter cartridge. As a result, the further functional component can be flexibly arranged in the housing structure, as a result of which the installation conditions of the filter at the installation location can be better taken into account.

Gemäß der Erfindung wird das Filtermedium durch eine ringförmig zusammengeschlossene Filterbahn gebildet, so lässt sich die Aussparung durch eine Faltentasche mit vergrößertem Faltenabstand bilden. Der vergrößerte Faltenabstand sorgt für eine parallel zur Achse des Filters verlaufende Aussparung, die keinen zusätzlichen Dichtungsaufwand am Filtermedium hervorruft, da dieses dennoch ringförmig geschlossen ist. Die Filterbahn kann aus Filterpapier oder Vlies bestehen. Denkbar sind auch mehrlagige Filtermedien, die zusätzlich Stützlagen oder Vorabscheidelagen aufweisen können.According to the invention, the filter medium is formed by an annularly joined filter web, so the recess can be formed by a folding pocket with increased folding distance. The increased pleat spacing ensures a parallel to the axis of the filter recess, which causes no additional sealing effort on the filter medium, since this is still closed annularly. The Filter web can consist of filter paper or fleece. Also conceivable are multilayer filter media which may additionally have support layers or pre-deposition layers.

Gemäß der Erfindung weist mindestens eine der Endscheiben eine Aussparung auf, die mit der Aussparung im Filtermedium korrespondiert. Hierdurch kann das weitere Funktionsbauteil auch von der Stirnseite der Filterpatrone her in die Aussparung geschoben werden. Die Aussparung in der Endscheibe kann z. B. durch ein Loch oder eine Einkerbung gebildet werden.According to the invention, at least one of the end disks has a recess which corresponds to the recess in the filter medium. As a result, the further functional component can also be pushed into the recess from the front side of the filter cartridge. The recess in the end plate can z. B. be formed by a hole or a notch.

Besondere Ausgestaltungen der Erfindung sehen vor, dass das weitere Funktionsbauteil ein Fühler eines Wasserstandssensors und/oder ein Saugstutzen für einen Flüssigkeitsablass ist. Der Flüssigkeitsablass ist insbesondere zum Entfernen von abgeschiedenen Wasser aus dem Kraftstoff eines Kraftstofffilters geeignet. In diesem Zusammenhang kann der Wasserstandssensor den höchst zulässigen Wasserpegel in der Gehäusestruktur des Filters bestimmen. Da sich das aus dem Kraftstoff abgeschiedene Wasser im unteren Teil des Gehäuses ansammelt, sind für die Unterbringung des Wasserstandssensors und des Flüssigkeitsablasses entsprechende Anforderungen an die Einbaulage zu stellen. Daher ist der geometrische Spielraum für die Anbringung dieser Bauteile ohnehin begrenzt. Daher wirkt sich die Aussparung in der Filterpatrone bei diesen Bauteilen besonders vorteilhaft aus, da die Problematik der beschränkten Anbringungsmöglichkeiten ausgeglichen wird.Particular embodiments of the invention provide that the further functional component is a sensor of a water level sensor and / or a suction nozzle for a liquid outlet. The liquid discharge is particularly suitable for removing separated water from the fuel of a fuel filter. In this context, the water level sensor can determine the maximum allowable water level in the housing structure of the filter. Since the separated from the fuel water accumulates in the lower part of the housing, appropriate requirements are placed on the installation position for the accommodation of the water level sensor and the liquid drain. Therefore, the geometric margin for the attachment of these components is limited anyway. Therefore, the recess in the filter cartridge in these components has a particularly advantageous effect, since the problem of limited mounting options is compensated.

Ein Kraftstofffilter für die Filterpatrone mit der Aussparung weist vorteilhafterweise einen Gehäusetopf und einen Gehäusedeckel auf, wobei das weitere Funktionselement in Deckel befestigt ist. Die Befestigung im Deckel wird bei hängender Anordnung des Kraftstofffilters mit Gehäusetopf nach unten nur möglich, wenn die Patrone eine Aussparung aufweist. Andernfalls könnte ein Wasserstandssensor bzw. ein Saugstutzen nicht an der Patrone vorbeigeführt werden, da hierzu kein Platz im Gehäusetopf vorgesehen ist. Die Anordnung der genannten Funktionsbauteile im Deckel ist aber nicht nur wegen der günstigeren Einbauplatzverhältnisse zu bevorzugen, sondern auch, weil alle komplexen Aufnahmestrukturen für Einlass, Auslass und die Funktionsbauteile in den Deckel integriert werden können. Der Gehäusetopf wird damit ein geometrisch einfaches und leicht zu fertigendes Bauteil, wodurch die Lösung wirtschaftlicher wird.A fuel filter for the filter cartridge with the recess advantageously has a housing pot and a housing cover, wherein the further functional element is mounted in the lid. The attachment in the lid is only possible in a hanging arrangement of the fuel filter with housing pot down when the cartridge has a recess. Otherwise, a water level sensor or a suction nozzle could not be passed by the cartridge, as this space is provided in the housing pot. However, the arrangement of said functional components in the lid is preferable not only because of the more favorable installation space conditions, but also because all the complex receiving structures for the inlet, outlet and the functional components can be integrated into the cover. The housing pot is thus a geometrically simple and easy-to-manufacture component, which makes the solution more economical.

Eine Filterpatrone, die die erfindungsgemäßen Merkmale aufweist, wird ebenfalls unter Schutz gestellt. Diese ist wie beschrieben in den erfindungsgemäßen Filter einzubauen.A filter cartridge having the features of the invention is also placed under protection. This is to be installed as described in the filter according to the invention.

Diese und weitere Merkmale von bevorzugten Weiterbildungen der Erfindung gehen außer aus den Ansprüchen auch aus der Beschreibung und den Zeichnungen hervor, wobei die einzelnen Merkmale jeweils für sich allein oder zu mehreren in Form von Unterkombinationen bei der Ausführungsform der Erfindung und auf anderen Gebieten verwirklicht sein und vorteilhafte sowie für sich schutzfähige Ausführungen darstellen können, für die hier Schutz beansprucht wird.These and other features of preferred embodiments of the invention will become apparent from the claims and from the description and drawings, wherein the individual features are each realized alone or in the form of sub-combinations in the embodiment of the invention and in other fields and can represent advantageous and protectable versions for which protection is claimed here.

Zeichnungdrawing

Weitere Einzelheiten der Erfindung werden in den Zeichnungen anhand eines Ausführungsbeispiels beschrieben. Hierbei zeigen

Figur 1
einen Mittelschnitt durch einen Kraftstofffilter,
Figur 2
die Aufsicht A auf einen Kraftstofffilter ohne Deckel gemäß Figur 1 und
Figur 3
die Aufsicht auf den montierten Kraftstofffilter gemäß Figur 1 aus Richtung A.
Further details of the invention are described in the drawings with reference to an embodiment. Show here
FIG. 1
a middle section through a fuel filter,
FIG. 2
the top view A on a fuel filter without cover according to FIG. 1 and
FIG. 3
the supervision on the assembled fuel filter according to FIG. 1 from direction A.

Beschreibung des AusführungsbeispielsDescription of the embodiment

Der Kraftstofffilter gemäß Figur 1 weist eine Gehäusestruktur 10 mit einem Gehäusetopf 11 und einem Gehäusedeckel 12 auf. Im Gehäusedeckel 12 sind ein Einlass 13 und ein Auslass 14 für den Kraftstoff sowie ein Wasserstandssensor 15 und ein Flüssigkeitsablass 16 für das aus der Gehäusestruktur abzuscheidende Wasser untergebracht.The fuel filter according to FIG. 1 has a housing structure 10 with a housing pot 11 and a housing cover 12. In the housing cover 12 are an inlet 13 and an outlet 14 for the fuel and a water level sensor 15 and a Liquid outlet 16 accommodated for the water to be separated from the housing structure.

In den Gehäusetopf 11 ist mit Hilfe einer Tellerfeder 17 und einem Abstandhalter 18 eine Filterpatrone 19 derart eingebaut, dass die Filterpatrone den Einlass 13 dichtend von dem Auslass 14 trennt. Daher muss der Kraftstoff durch ein Filtermedium 20 strömen, was durch Pfeile angedeutet ist. Durch den Abstandhalter ist im unteren Teil des Gehäusetopfes ein Auffangraum 21 für das abgeschiedene Wasser gebildet.In the housing pot 11, a filter cartridge 19 is installed with the aid of a plate spring 17 and a spacer 18 such that the filter cartridge sealingly separates the inlet 13 from the outlet 14. Therefore, the fuel must flow through a filter medium 20, which is indicated by arrows. Through the spacer, a collecting space 21 for the separated water is formed in the lower part of the housing pot.

Die Filterpatrone 19 besteht aus dem ringförmigen Filtermedium 20, welches durch ein zick-zack-förmig gefaltetes Filterpapier gebildet ist, und aus Endscheiben 22, in die die Stirnseiten des Filtermediums eingebettet sind. Dargestellt ist weiterhin eine Aussparung 23 im Filtermedium sowie Aussparungen 23a in den Endscheiben 22, durch die ein Saugstutzen 24 des Flüssigkeitsablasses 16 und ein Fühler 25 des Wasserstandssensors 15 geführt sind. Diese erstrecken sich vom Montageort im Gehäusedeckel 12 bis hinein in den Auffangraum 21 für das Wasser, der infolge der Einbaulage des Kraftstofffilters mit nach unten weisendem Gehäusetopf 11 unterhalb der Filterpatrone liegt. Wasserstandssensor 15 und Flüssigkeitsablass 16 sind in einem Montagekopf 26 zusammengefasst.The filter cartridge 19 consists of the annular filter medium 20, which is formed by a zig-zag folded filter paper, and end plates 22, in which the end faces of the filter medium are embedded. Shown is also a recess 23 in the filter medium and recesses 23a in the end plates 22, through which a suction nozzle 24 of the liquid outlet 16 and a sensor 25 of the water level sensor 15 are guided. These extend from the mounting location in the housing cover 12 into the collecting space 21 for the water, which is due to the installation position of the fuel filter with downwardly facing housing pot 11 below the filter cartridge. Water level sensor 15 and liquid outlet 16 are combined in a mounting head 26.

Figur 2 gestattet den Blick auf die Filterpatrone 19, wobei die obere Endscheibe 22 teilweise aufgebrochen dargestellt ist. Darunter wird das gefaltete Filtermedium 20 sichtbar, wobei die Aussparung 23 durch eine Faltentasche 27 gebildet wird, die einen größeren Faltenabstand als die anderen Faltentaschen hat. Die Aussparung 23 des Filtermediums korrespondiert mit den Aussparungen 23a in den Endscheiben 22, wobei die Aussparung der unteren Endscheibe 23a zu erkennen ist. In der Aussparung ist weiterhin der Schnitt durch den Fühler 25 und den Saugstutzen 24 zu erkennen. Angedeutet als Einbauort ist der Gehäusetopf 11. FIG. 2 allows the view of the filter cartridge 19, wherein the upper end plate 22 is shown partially broken. Underneath, the folded filter medium 20 is visible, wherein the recess 23 is formed by a folding pocket 27, which has a greater pleat spacing than the other folding pockets. The recess 23 of the filter medium corresponds to the recesses 23a in the end plates 22, wherein the recess of the lower end plate 23a can be seen. In the recess, the section through the probe 25 and the suction nozzle 24 can still be seen. Suggested as installation location of the housing pot 11th

Figur 3 zeigt die Aufsicht auf den Kraftstofffilter, wobei der Einlass 13 versetzt dargestellt ist. Zu erkennen ist weiterhin der Auslass 14 und der Montagekopf 26. Dieser besteht aus dem Wasserstandssensor 15, welcher einen Steckanschluss 28 für nicht dargestellte Signalleitungen aufweist, und dem Flüssigkeitsablass 16, welcher eine handbetätigte Ventilschraube 29 und einen Schlauchstutzen 30 aufweist. FIG. 3 shows the top view of the fuel filter, wherein the inlet 13 is shown offset. It can also be seen the outlet 14 and the mounting head 26. This consists of the water level sensor 15, which has a plug-in connection 28 for signal lines, not shown, and the liquid drain 16, which has a manually operated valve screw 29 and a hose nozzle 30.

Claims (4)

  1. Filter with a filter cartridge comprising a ring-shaped filter medium (20) formed between end plates (22), in particular liquid filter for a motor vehicle, the filter medium (20) consisting of a pleated filter belt closed in a ring-shaped design, the filter featuring a housing structure (10) with an intake (14) and an outlet (14) for the fluid to be cleaned as well as another functional component, at least one cut-out (23) in the filter medium being provided for the other functional component, characterized in that the cut-out (23) extends axially at least until one of the end plates (22) and that this end plates features also a cut-out (23a) which corresponds with the cut-out (23) in the filter medium, and the cut-out (23) being formed by only one fold pocket (27) which has a larger pleat distance than the other fold pockets.
  2. Filter according to one of the above claims, characterized in that the other functional component is a sensor (25) of a water level detector (15).
  3. Filter according to one of the above claims, characterized in that the other functional component is an intake tube (24) of a fluid outlet (16).
  4. Filter according to one of the above claims, characterized in that it is designed as fuel filter with a housing structure, consisting of a housing pot (11) and a housing cover (12), the other functional component being attached in the cover and protruding into the cut-out (23) of the filter medium.
EP01114072A 2000-06-15 2001-06-09 Filter with annular formed filter medium Expired - Lifetime EP1163944B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10029539A DE10029539B4 (en) 2000-06-15 2000-06-15 Filter with a ring-shaped filter medium
DE10029539 2000-06-15

Publications (2)

Publication Number Publication Date
EP1163944A1 EP1163944A1 (en) 2001-12-19
EP1163944B1 true EP1163944B1 (en) 2009-05-06

Family

ID=7645856

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01114072A Expired - Lifetime EP1163944B1 (en) 2000-06-15 2001-06-09 Filter with annular formed filter medium

Country Status (5)

Country Link
US (1) US6852217B2 (en)
EP (1) EP1163944B1 (en)
AT (1) ATE430614T1 (en)
BR (1) BR0103250B1 (en)
DE (2) DE10029539B4 (en)

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Also Published As

Publication number Publication date
US20020038780A1 (en) 2002-04-04
DE10029539A1 (en) 2001-12-20
BR0103250A (en) 2002-04-23
US6852217B2 (en) 2005-02-08
DE50114880D1 (en) 2009-06-18
DE10029539B4 (en) 2012-12-13
EP1163944A1 (en) 2001-12-19
BR0103250B1 (en) 2010-11-03
ATE430614T1 (en) 2009-05-15

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